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KMID : 0361919750050010021
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Korean Journal of Orthodontics
1975 Volume.5 No. 1 p.21 ~ p.24
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THE EXPERIMENTAL STUDY OF THE EFFECT OF ZINC PHOSPHATE CEMENT ON THE SOLUBILITY OF ENAMEL
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Kim Sung-Nam
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Abstract
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The purpose of this study was to investigate the effect of sinc phosphate cement on the enamel surface of extracted teeth. The tooth was placed in a test tube, which was subjected to 5ml of 0.2M acetate buffer at pH 4 by ’’window technique.’’ The calcium content of the acetate buffer was determined by the Perkin-Elmer Model 303 Atomic Absorption Spectrophotometer. The obtained results were summarized in the following. 1. The solubility of enamel is 0.92mg/cm^2. ml in control group. 2. The solubility of enamel is increased by treating these with zinc phosphate cements. 3. The solubility of enamel is 0.69mg/cm^2. ml by treating with Lee Smith cement. 4. The solubility of enamel is 0.30mg/cm^2. ml by treating with G-C’’s cement.
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KEYWORD
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